function [M1,M2,M3,M4,Sigma1,Sigma2,Sigma3,Sigma4]=init_data
M1 = [7.825 6.75 5.835 8.525 6.615 7.065 7.865 4.435 ].';
M2 = [5.76 5.715 5.705 4.15 6.225 6.96 6.75 3.91 ].';
M3 = [6.61 5.060 5.98 3.975 9.02 14.685 10.64 4.175 ].';
M4 = [6.12 6.285 5.85 4.365 6.34 4.675 6.26 4.44 ].';

Sigma1 = [ 1.034 1.281 0.351 -0.293 0.098 0.301 0.141 1.336 ; ...
           1.281 1.967 0.664 -0.219 0.259 0.556 0.276 2.094 ; ...
           0.351 0.664 7.138 1.192 2.726 1.116 0.678 2.097;...
          -0.293 -0.219 1.192 2.269 1.367 0.146 0.201 -0.308;...
           0.098 0.259 2.726 1.367 5.727 1.28 0.933 2.107; ...
           0.301 0.556 1.116 0.146 1.28 2.941 1.949 2.197 ; ...
           0.141 0.276 0.678 0.201 0.933 1.949 1.577 1.229 ; ...
           1.336 2.094 2.097 -0.308 2.107 2.197 1.229 6.606 ];

Sigma2 = [4.792 4.417 4.244 2.406 1.798 0.79 0.785 2.993 ; ...
          4.417 5.074 4.686 2.798 1.824 0.639 0.644 2.799 ; ...
          4.244 4.686 5.428 3.224 2.111 0.903 1.131 2.943 ; ...
          2.406 2.798 3.224 5.287 3.006 1.326 1.897 2.648 ; ...
          1.798 1.824 2.111 3.006 3.574 2.229 2.471 1.915 ; ...
          0.79  0.639 0.903 1.326 2.229 4.008 2.405 1.106 ; ...
          0.785 0.644 1.131 1.897 2.471 2.405 4.507 1.727 ; ...
          2.993 2.799 2.943 2.648 1.915 1.106 1.727 3.972 ];
                
     
      
Sigma3 = [1.638   2.153   1.482   1.695   -0.557  -2.443  -0.710  1.983;
                   2.153    3.596   2.461   2.436   -0.591  -3.711  -0.493  2.434;
                   1.482    2.461   2.500   2.834   -0.665  -2.621  0.248   1.738;
                   1.695    2.436   2.834   4.704   -0.629  -2.913  0.576   2.471;
                   -0.557   -0.591  -0.665  -0.629  19.00   0.896   8.622   -0.254;
                   -2.443   -3.711  -2.621  -2.913  0.896   5.856   1.357   -2.915;
                   -0.710   -0.493  0.248   0.576   8.622   1.357   20.80   -0.622;
                   1.983    2.434   1.738   2.471   -0.254  -2.915  -0.622  3.214 ];
                   
Sigma4 = [5.116   4.736   4.058   1.821   1.109   1.289   1.029   2.232;
                   4.736   5.684   4.523   2.311   1.273   1.328   1.151   2.425;
                   4.058    4.523   6.117   2.525   1.321   1.501   1.274   2.191;
                   1.821    2.311   2.525   4.432   2.481   2.179   1.080   1.784;
                   1.109    1.273   1.321   2.481   2.134   2.325   1.017   1.030;
                   1.289    1.328   1.501   2.179   2.325   4.099   2.019   1.803;
                   1.029    1.151   1.274   1.080   1.017   2.019   1.872   2.081;
                   2.232    2.425   2.191   1.784   1.030   1.803   2.081   3.806];
      
end